{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2989",
    "entityType": "User",
    "nonce": "0x5c7e503fea0d5eec5386eb3a5a1d68e87899489da8680f24e30ad412b7fa84b0",
    "signature": "0xfdbaf35d732883ba8f92d3de06ce9237c5d2e8c9fdd47ee72c9619b52cc888cf60d97e83c0404c38cde1cb5ef516ce8010f2316215beecec0a0ece08fe51cefd1b",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}